nsa leaker edward snowden has a message for the u.s. stop treating me like a trader. -- traitor. snowden is under temporary asylum in russia for leaking the nsa's secret playbook and faces espionage charges in the u.s. tucker. >> hey, clayton what needs to be done to prevent these kind of attacks. jonathan gillian. thank you for joining thus morning. >> good to be with you. >> i want to put up on the scene -- screen. there have been couple of shootings. gunman killed himself in houston. 2010, new orleans, one dead, one wounded and famously in los angeles 2002, two dead and three wounded. do you see a pattern here? >> well, obviously we see a pattern of individuals that are drawn to this for some reason. i'm not exactly clear why people who have rage are drawn to this. but, yeah, we definitely do see an issue with this. and i think probably one of the things that allows people to go there and do or draws them there is the access to the airport. and the importance of the airport. so they probably look at this as something that almost like a government entity where they know people